He was only around since the beginning of September but was impressively prolific with the alts, I should get a full count sometime. But you might be blurring him with Daiki a little since there was some overlap there and they both used AI.
I will never forget Harper's grand entrance honestly, I busted out laughing when I just happened to tab over and see all this.
As for the catfuckers, the way they always proliferated before was through kids who had no idea about the site using Google and turning up unpublished games in the results. (That was why simply unpublishing them instead of nuking them from orbit never worked.) For awhile the site name was even part of the autocomplete on Google for "Warrior Cat games".... those were dark times. I'm guessing something like that is still going on to a lesser degree. I believe there's a few games that ended up possible to delete completely because of some glitch, like the contents are broken but the title and description are still there.